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Vortex dynamics and magnetic anisotropy in RuSr{sub 2}GdCu{sub 2}O{sub 8}

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.1356045· OSTI ID:40204096
Polycrystalline samples of RuSr{sub 2}GdCu{sub 2}O{sub 8} with a magnetic ordering temperature (T{sub M}=135K) and a resistively determined superconducting onset temperature (T{sub c}=45K) were synthesized using a solid-state reaction. Transport and magnetic measurements indicated coexistence of weak ferromagnetic-like order and superconductivity at low temperatures. A novel radio-frequency (rf) resonant technique was employed to probe the mixed state response. The results clearly indicate that in the superconducting state (T{lt}T{sub c}), the rf response is dominated by the flux lattice dynamics and in the normal state (T{sub c}{lt}T{lt}T{sub M}), the data are consistent with transverse susceptibility exhibiting sharp peaks at characteristic switching and anisotropy fields. {copyright} 2001 American Institute of Physics.
Sponsoring Organization:
(US)
OSTI ID:
40204096
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 11 Vol. 89; ISSN 0021-8979
Publisher:
The American Physical Society
Country of Publication:
United States
Language:
English

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